Well this is amazing. If you want to see another human being speed run Metal Gear Solid V: Ground Zeroes using nothing but empty magazine clips as weapons then this is the post for you!
Perhaps the most satisfying part of this video is the 'ding' noise the clips make when they boink enemies on the head. Gold.
I've only played through Metal Gear Solid V: Ground Zeroes once, but this has reminded me that, at some point, I should really take the time to check it out again. I've always had my most rewarding MGS moments on the third or even fourth play through.